Ewaldite Donnay G, Preston H Tschermaks Mineralogische und Petrographische Mitteilungen 15 (1971) 201-212 Ewaldite, a new barium calcium carbonate II. Its crystal structure Note: unlocated carbonate group _database_code_amcsd 0015637 5.284 5.284 12.78 90 90 120 P6_3mc atom x y z occ Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) Ba 1/3 2/3 0 .023877 .023877 .002526 .011939 0 0 Ca 1/3 2/3 .305 .48 .024116 .024116 .003658 .012058 0 0 Ce 1/3 2/3 .305 .20 .024116 .024116 .003658 .012058 0 0 Na 1/3 2/3 .305 .15 .024116 .024116 .003658 .012058 0 0 K 1/3 2/3 .305 .11 .024116 .024116 .003658 .012058 0 0 Sr 1/3 2/3 .305 .03 .024116 .024116 .003658 .012058 0 0 U 1/3 2/3 .305 .02 .024116 .024116 .003658 .012058 0 0 C 0 0 .422 2.3 O .137 -.137 .425 2.7